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Finding the Fourth Proportional to 520,698.24, 718,594.56 and 294,364.80

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Solution

The fourth proportional to 520,698.24, 718,594.56 and 294,364.80 is: 406,240.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,698.24 : 718,594.56 = 294,364.80 : x
  2. Step 2: Convert to fraction form
    520,698.24/718,594.56 = 294,364.80/x
  3. Step 3: Cross multiply
    520,698.24x = 718,594.56 × 294,364.80
  4. Step 4: Simplify right side
    520,698.24x = 211,528,943,935.49
  5. Step 5: Solve for x
    x = 211,528,943,935.49/520,698.24
  6. Step 6: Final answer
    x = 406,240.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.